Window-sliding device



Oct. 7,1924.

. 1,511,088 J. B MALIMANEK WINDOW SLIDING DEVICE Filed Feb 24. 1925 FIG. 4-.

IUIIHIIUHHHHIIHI IHIIHIIHIIHIIHHHHHIII Patented Oct. 7, 1924.

UNITED STATES JOSEPH B. MALIMANEK, OF TROY, SOUTH DAKOTA.

WINDOW-SLIDING DEVICE.

Application filed February 24, 1923.

T aZZavhom it may concern.

Be it known that I, JOSEPH B. MALI- MANEK, a citizen of the United States of America, residing at Troy, in the county of Grant and State of South Dakota, have invented certain new and useful Improvements in l/Vindow-Sliding Devices, of which the following is a specification.

This invention relates to new and useful improvements in window sliding devices wherein improved means are provided for aiding in raising a window sash.

An important object of the invention is to provide means for properly centering a window sash to prevent it from becoming cocked or tilted within its casing thereby causing it to bind and prevent ready raising.

A further object of the invention is to provide means for aiding in starting the raising of a window sash that has swollen, or what might be termed frozen shut, due to particular weather conditions or many other causes which need not be enumerated herein.

Other objects and advantages. of the invention will be apparent during the course of the following description.

In the accompanying drawing forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a fragmentary front elevational view, partly broken away, and shows a window casing with a window sash slidably mounted therein and provided with the improvement embodying this invention,

Figure 2 is a horizontal sectional view taken on line IIII of Fig. 1,

Figure 8 is a fragmentary side el-evational View of a window casing with a portion of the device embodying this invention attached thereto, and

Figure 4 is a fragmentary end elevational view of a window sash and showsa portion of a rack bar carried thereby.

In the drawing, wherein for the purpose of illustration is shown a preferred embodiment of this invention, the numeral 5 designates the vertical inner and outer face boards of a window casing which are retained in their spaced relation by means of the vertical sash guide 6. The usual upper and lower window sashes 7 and 8 respectively are positioned within the window casing in the customary manner and are adapted Serial N0. 620,939.

to be raised and lowered in their respective channels formed in the sash guide.

The vertical sash guide 6 is provided with a substantially rectangular-shaped recess 9 that is position-ed for a portion of its length above the upper edge of the lower window sash 8, when the latter is in its closed position. Secured to the rear wall of the recess 9 is a plate 10 that is provided with spaced lugs 11 having transverse openings in their outer ends that are adapt-ed to receive the pivot pin 12 to which is swingingly secured the shank portion 13 of the inverted U-shaped member 14. Rigidly secured to the free ends of the inverted U-shaped member 14: is a pin 15 that is provided for supporting the rotatably mounted gear 16, as shown. The gear 16 is provided with. a recess or pocket 17 within which is mounted the coiled strap spring 18 that is secured at its inner end to the pin 15. This spring 18 is secured at its outer end to one of the side arms of the inverted U-shaped member 14 by the pin 19, as best shown in Figs. 1 and 3. Secured to the plate 10 is a looped strap spring 20 that is positioned to engage against the inverted U-shaped member 14 for urging the free ends of such member with its gear 16 outwardly of the recess 9.

The lower window sash 8 is provided with a longitudinally extending channel 21 within which is positioned the rack bar 22, as best shown in Figs. 2 and 4. The operation of the device is as follows 2-- It is to be understood that Fig. 1 shows the lower sash 8 slightly raised and that the coiled strap spring 18 is slightly unwound due to the gear being retained in mesh with the rack 22 by means of the looped strap spring 20. Figure 2 is intended to show the spring 18 tightly wound which is the state of the same when the lower sash 8 is in its completely closed position. It will, therefore, be apparent that the tightly coiled spring will aid in starting the window in. an upward direction from its completely closed position. Vhile there is shown the device associated with one vertical edge of a window sash, it is to be understood that at least one is to be associated with each side of the sash and, if so desired, two may be employed upon each side of the window sash and positioned at the top and bottom of the same.

It is to be understood that the form of this invention herewith shown and described is size, and arrangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the sub joined claims.

Having thus described the invention, I

claim l. The combination with a Window sash having a longitudinal channel formed therein and a rack bar positioned in said chann-el of a WlllClO-W casing having a recess formed therein, a plate carried by one Wall said recess, a pair of spaced lugs carried by said plate, an inverted U-shaped member swingingly carried by said lugs, a recessed gear rotatably carried by said member, means ssociated With said member for retai-ning said gear in operative engagement Withsaid rack bar, and acoi'led strap spring Within the recess of said gear and connected pair of spaced lugs carried by said plate, an

inverted U-shaped member swingingly carried by said lugs, a recessed gear rotatably carried by said member, a looped strap spring secured at its opposite ends to said plate and adapted for engaging said U- shaped member for retaining said gear in operative engagement with said rack bar and means positioned Within the recess of said gear and connected to said member and gear for causing the latterwto aid inmanually raising said Window.

In testimony whereof I aflix my signature.

JOSEPH B. MALE 'ANEK. 

